A fix is available
APAR status
Closed as program error.
Error description
Force unmount hangs in the following stack. (0)> th -n mount SLOT NAME STATE TID PRI RQ CPUID CL WCHAN pvthread+034A00 842 mount SLEEP 34A00E5 03C 0 0 j2Lock slist_table+000A90 pvthread+070E00 1806 mount SLEEP 70E006B 001 513 0 vmmary_pdt+0094D0 (0)> f 1806 pvthread+070E00 STACK: [0005E7DC].backt+000000 () [00663290]vm_umountx+0001F0 (??, ??, ??, ??) [00275488]vmUnmountPagingDevice+000028 (??) [0027CC60]pagerUnmount+000020 (??) [0050554C]j2_umount+0005AC (??, ??, ??) [0058B358]vfs_unmount+000098 (??, ??, ??) [006252BC]kunmount+0000DC (??, ??, ??) [00625B08]uvmount+000208 (??, ??) [F1000000C03EE008]my_uvmount+00078C (0000006900000069, 0000000100000001) [00003850]ovlya_addr_sc_flih_main+000130 () [kdb_get_virtual_memory] no real storage @ 2FF22338 [10005428]10005428 () [kdb_read_mem] no real storage @ FFFFFFFFFFF9200
Local fix
system reboot is required to clear the hang.
Problem summary
force unmount of a JFS2 filesystem hangs with following stack trace 0005E7DC .backt+000000 () 00663290 vm_umountx+0001F0 (??, ??, ??, ??) 00275488 vmUnmountPagingDevice+000028 (??) 0027CC60 pagerUnmount+000020 (??) 0050554C j2_umount+0005AC (??, ??, ??) 0058B358 vfs_unmount+000098 (??, ??, ??) 006252BC kunmount+0000DC (??, ??, ??) 00625B08 uvmount+000208 (??, ??) F1000000C03EE008 my_uvmount+00078C
Problem conclusion
Fail pagefaults on the FS, while force unmount in progress
Temporary fix
Comments
APAR Information
APAR number
IV48216
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2013-09-11
Closed date
2013-09-11
Last modified date
2014-02-17
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
AIX 610 STD EDI
Fixed component ID
5765G6200
Applicable component levels
R610 PSY U859536
UP14/02/17 I 1000
PTF to Fileset Mapping
U859536 bos.mp64 6.1.8.17
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Document Information
Modified date:
17 February 2014